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Effect of the Sintering on Microstructure and Superconducting Properties of Yba2cu3o7-δ Ceramics
| Content Provider | Semantic Scholar |
|---|---|
| Author | Mahtali, Mohamed Boubeghal, Abdelouahab Bouabellou, A. |
| Copyright Year | 2005 |
| Abstract | Superconducting YBa2Cu3O7-δ (Y-123) ceramics were prepared by the solid-state reaction method. The microstructure and superconducting properties of the sintered samples obtained under various conditions were investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), thermal analysis (TDA-TGA) and electrical resistivity measurements. The study showed that the calcination at 800°C for 30 hours of theY2O3, BaCO3 and CuO mixture led to the starting of the Y-123 and BaCuO2 phases’ formation. However, in the temperature range of 950 - 990°C, Y-123 crystallized and became predominate compound. For higher temperatures (near 1100°C), green Y2BaCuO5 phase was formed. A (00l) preferred orientation of Y-123 grains was occured after sintering in air at temperatures 950-990°C for 30 hours. The textured samples presented the best transport properties |
| Starting Page | 39 |
| Ending Page | 42 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://revue.umc.edu.dz/index.php/a/article/download/179/291 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
